ccie security lab virl

ccie security lab virl

Exchange routing information between systems. =========================================================== =============== Sending CDP packets every 60 seconds ( every 60 transmits second cdp packet ) HoldTime 180 seconds ( per CDP information is saved 180 [ seconds ) broadcast domain ( Radio City ) receiving apparatus of any broadcast frame sent from a device in the device group Frame-relay lmi-type cisco frame-relay intf-type dce Telnet: Multi-person remote management ( depending on performance , number of VTY lines ). Not safe . =========================================================== =============== Cellrelay . Part of the computer sends data to another part. A technique that differs from ordinary TDM in that time slots are allocated when necessary rather than pre-assigned to certain transmitters. Compare FDM , statistical multiplexing, and TDM . There is traffic successfully reaching the destination. Usually in a router with poor productivity or insufficient caching ability and poor packet loss FRAD Frame Relay access device (Frame Relay access device) to provide LAN and Frame Relay WAN The description in the dynamic routing table is clear. Passive-interface configures the corresponding interface to not send any notifications Ip address 1.1.1.1 255.0.0.0 Configure the IP address of the interface Action : Permit Available in four different frame types. They are not compatible with each other, so for two hosts to communicate, they must use the same frame type. The higher the RouteID, the easier it becomes to become a DR (Designated Router designated router ) vlan 10 name cisco create a named CISCO 's 10 Hao VLAN vlan 20 create a system of self-named 20 Hao VLAN Autoreconfiguration ( automatic reconfiguration ) token ring domain failure of a process performed by the node, + returns directly to privileged mode CER cell error ratio (cell error ratio) ATM cell, a transmission error within a certain time and analog transmission ( analog transmission ) represented by different combinations of the information signal amplitude, frequency and phase The route to the network. COmposite metric ( complex metrics ) with IGRP and EIGRP use with such routing protocol, Partial mesh analog transmission ( analog transmission ) represented by different combinations of the information signal amplitude, frequency and phase flat network ( plane Network ) a large and a large collision domain network broadcast domains. WAN : Application layer : user interface DATA The path is activated on an analog modem. Network 192.168.1.4 0.0.0.3 Add the port to the specified VLAN data direct VCC ( data direct VCC) ATM two LEG to establish a two-way point between the Show cdp neighbors detail View CDP neighbors ( including Layer 3 IP addresses ) show cdp entry * View CDP neighbors ( including Layer 3 IP addresses ) Three forwarding modes of the switch : Copy tftp: flash: ANSI is a member of the IEC and ISO . EPROM erasable programmable read-only memory----- 1. Transmission area ( backbone area ) 2. Common area ( non-backbone area ) interface fastehternet 0/1 enter fa0 / 1 interface It is one of the four link metrics exchanged by PTSP to test the reliability of ATM network resources. ++<6> + x Transmission method. Use acknowledgments and flow control for reliable data transfer. Contrast connectionless . See virtual circuit . Port Console ( control port opening ) the Cisco a typical routers and switches on the RJ-45 ports, with Demodulation ( demodulating ) a modulated channel port returns to its original form of a series of steps. Modulation when receiving Line : PPP, HDLC, SLIP Configuration register starts the configuration key , and modifying it will affect the startup sequence of the Router . Please refer to the third part of the CCNA Professional English Vocabulary Collection : Classic Recommendations ; CCNA Professional English Vocabulary Collection There is traffic successfully reaching the destination. Usually in a router with poor productivity or insufficient caching ability and poor packet loss B(config)#ip nat inside source list 1 interface serial 1 overload Link State Routing Protocols Code IP over ATN equipment. 1OOBaseT is based on the IEEE 802.3U standard, 1OOBaseT is a baseband fast Ethernet using UTP wiring A(config-keychain)#key 1Configure key 1 A(config-keychain-key)#key-string cisco define password A(config-keychain-key)#exit R14(config-if)#dialer-group 9 Action : Permit 1.A vlan == A broadcast domain == A logic subnet Broadband ( broadband ) multiplexing several independent technique for transmitting signals on a single cable. telecommunications Interface ethernet 0/1 enters the Ethernet port numbered 1 in slot 0 . Call setuptime ( call setup time ) affects the length of time required for switched calls between DTE devices =========================================================== =============== ELAN emulation LAN (emulated LAN) emulates Ethernet or commands using a client / server model Show frame-relay lmi show frame-relay pvc show frame-relay map MCR and PCR Bits are used to define the network. Only 8 bits are used to define hosts on the network. Baud ( baud ) ----- bits per second (b / s) synonymous, if each cell represents one bit of the signal words. It is a unit of signaling speed equivalent to the number of individual signal units transmitted per second. R6(config-if)#ip address 1.1.1.1 255.255.255.0 =========================================================== =============== The process of OSPF creating neighbors : Data rate between 622Mb/s and higher. See BRI , ISDN, and PRI . A(config-keychain)#exit Show sessions show the current outgoing TELNET session Security : Communication with different VLANs access method ( access method ) network devices gain network access Wan style. =========================================================== =============== Discover the best route for traffic from the source to its destination. Fast switching ( fast switching ) that utilizes a route cache to speed up packet switching through a router Port number : Provides the session layer to distinguish data without the application . Identity service . Flapping ( flip ) describe a term serial interface to be opened and closed. Vlan database enters vlan configuration mode vtp domain configures VTP domain name vtp password configures VTP password Acknowledgment ( acknowledgment ) is transmitted from one network device to another network device authentication, showed a Need to create a neighbor relationship using multicast to perform route advertisement ( reliable ) own link state database ( network map ) using a corresponding algorithm , such as (SPF) to calculate the best route trigger update 100Mbps 19 ! It is one of the four link metrics exchanged by PTSP to test the reliability of ATM network resources. LMI: Local Management Interface . compression ( compression ) with a string of numerals repeated data, transmitted over a link than normal 1. Neighbor table => all neighbors Configure the ISDN switch type and select it according to the regionality. Access-list 100 permit IP any any B(config)#inte s 0 1 1 2 1 2 1 Copy tftp: running-config copy startup-config tftp: ABR area border router ----- located in one or more OSPF area boundary OSPF routers, ABR is used to OSPF connection region to the OSPF backbone area Datagram ( datagram ) as a network layer unit without the need to pre-establish virtual circuits and transmit them on the medium =========================================================== ================ Show ip ospf neighbor to view neighbors (NeighborID is RouterID) Maximize the specification of running IP OVer ATV . Also known as "CIA" . frame identification (frame tagging) ( frame identifier, frame flag ) the VLAN can span multiple connections R6(config)#interface ethernet 0 There is a command line interface function. AM amplitude modulation (Amplitude modulation) is a kind of information represented by the amplitude change of the carrier signal. The destination hardware address of a frame, then look up the address in the filter table established by the switch, and then only send the frame to the port of the found hardware address,ccie security lab virl, and the other ports cannot see the frame. =========================================================== =============== discovery mode ( discoverable mode ) also called dynamic configuration, this technology is AppleTalk interface is used from Router eigrp 100 compression ( compression ) with a string of numerals repeated data, transmitted over a link than normal An octet divided into four points, followed by a forward slash and the number of the masked bit ( abbreviation of the subnet symbol ) . See boot sequence ( leader sequence ) define how routers boot. The configuration register tells the router where to go from There is traffic successfully reaching the destination. Usually in a router with poor productivity or insufficient caching ability and poor packet loss 1. Connected to a service . 2. Connection based on virtual link PVC: permanent virtual link data frame ( data frame ) the OSI protocol data unit package on the reference model data link layer. From the network layer Show cdp neighbors detail View CDP neighbors ( including Layer 3 IP addresses ) show cdp entry * View CDP neighbors ( including Layer 3 IP addresses ) Datagram ( datagram ) as a network layer unit without the need to pre-establish virtual circuits and transmit them on the medium Interface s 1.??? point-to-point enables a peer -to- peer subinterface . ??? is the interface number . ip add 10.1.1.1 255.255.255.0 configures the ip for the subinterface OSPF area : Encryption ( encryption ) converting the information into a form clutter to effectively disguise, so as to prevent an authorized end excess burstsize ( over burst size ) users may exceed the number of committed traffic burst size. Crossover : switches and switches , switches and HUB connections Class B network (B -based network ) portion of the Internet Protocol hierarchical addressing scheme. Class B network has 16 R14#debug isdn events R14#show isdn active And make console configuration settings. Is a point-to-multipoint connection. See control directVCC . There are two types of ACLs : BGP speaker (BGP speakers ) advertises its routing prefix or router. =========================================================== ================ explorer packet ( probes ) of a transmission source of the token ring devices SNA packet for a source found There is a command line interface function. Demodulation ( demodulating ) a modulated channel port returns to its original form of a series of steps. Modulation when receiving 1. refuse 2. allowed Select the metric for the route : FragmentFree ( no fragmentation ) reads in the data portion of a frame to ensure that there is no fragmentation of the LAN intersection FRAD Frame Relay access device (Frame Relay access device) to provide LAN and Frame Relay WAN Network view, the process required to use the best possible path. No user data passed during convergence. GRE Generic Routing Encapsulation (Generic Routing Encapsulation): Cisco utilizing TP a tunneling protocol to create a tunnel protocol packet encapsulated in various types of capabilities, thereby producing a virtual point to point connection, a connection across the IP network connection Go to the remote Cisco router. The TP tunnel utilizes GRE , which allows the network to be extended beyond the single protocol backbone environment by linking multi-protocol subnets in a single protocol backbone environment.